commit https://github.com/vim/vim/commit/450ca4335e467ac29c1560b7397225a974aee3bf Author: Bram Moolenaar <Bram@vim.org> Date: Tue Nov 10 13:30:39 2015 +0100 patch 7.4.911 Problem: t_Ce and t_Cs are documented but not supported. (Hirohito Higashi) Solution: Define the options.

Test A:
  - file name displayed: test://bar.txt
  - quickfix claims that the file name displayed is: test://bar.txt
Test B:
  - number of window open: 2
Test C:
  - 'buftype' of the location list window: quickfix
  - buffer displayed in the 2nd window: test://quux.txt